返 回 首 页   欢迎光临!          来 宾 留 言
 当前位置:首页 > 课件交流

强调it句型

时间:2020-10-15 17:29:31  来源:  作者:
  一、夸大句
  
  (一)夸大句句型
  
  1、报告句的夸大句型:It is/ was + 被夸大片面(时时主语、宾语或状语)+ that/ who(当夸大主语且主语指人)+ 别的片面。
  
  e.g. It was yesterday that he met Li Ping.
  
  2、一般疑问句的夸大句型:同上,只是把is/ was提到it前方。
  
  e.g. Was it yesterday that he met Li Ping?
  
  3、分外疑问句的夸大句型:被夸大片面(时时疑问代词或疑问副词)+ is/ was + it + that/ who + 别的片面?
  
  e.g. When and where was it that you were born?
  
  4、夸大句例句:针对I met Li Ming at the railway station yesterday.句子举行夸大。
  
  夸大主语:It was I that (who) met Li Ming at the railway station yesterday.
  
  夸大宾语:It was Li Ming that I met at the railway station yesterday.
  
  夸大地址状语:It was at the railway station that I met Li Ming yesterday.
  
  夸大时间状语:It was yesterday that I met Li Ming at the railway station.
  
  5、留意:组成夸大句的it本身没有词义;夸大句中的持续词一般只用that, who,即使在夸大时间状语和地址状语时也云云,that, who不行不祥;夸大句中的时态只用两种,一般现在时和一般以前时。原句谓语动词是一般以前时、以前实现时和以前举行时,用It was … ,另外的时态用It is … 。
  
  (二)not … until … 句型的夸大句
  
  1、句型为:It is/ was not until + 被夸大片面 + that + 别的片面
  
  e.g. 一般句:He didn’t go to bed until/ till his wife came back.
  
  夸大句:It was not until his wife came back that he went to bed.
  
  2、留意:此句型只用until,不消till。但若不是夸大句型,till, until可通用;由于句型中It is/ was not … 曾经否认句了,that背面的从句要用必定句,切勿再用否认句了。
  
  (三)谓语动词的夸大
  
  1、It is/ was … that … 布局不能够夸大谓语,若需求夸大谓语时,用助动词do/ does或did。
  
  e.g. Do sit down. 必须请坐。
  
  He did write to you last week. 上周他确实给你写了信。
  
  Do be careful when you cross the street. 过马路时,必须(万万)要当心啊!
  
  2、留意:此种夸大只用do/ does和did ,没有另外形式;以前时用did ,背面的谓语动词用真相。
  
  二、It的用法
  
  (一)作人称代词
  
  1、it代替前方(或背面)的单数名词或分句等所显露的事物。
  
  e.g. You cannot eat your cake but have it.(it代替前方的cake)
  
  Although we cannot see it, there is air all around us. (it代替背面的air)
  
  They say he has left town, but I don’t believe it. (it代替前方They…town分句中的环境)
  
  2、代替有性命但不能够或无谓分阴阳性的东西(包含婴儿)。
  
  e.g. Yesterday we saw a big tree. It was fully twenty metres high. (it代替前方的tree)
  
  The baby cried because it was hungry. (it代替前方的baby)
  
  3、在某些习气说法中,能够代替人。
  
  e.g. ---- Someone is knocking at the door, Peter.  ---- Who is it?        ---- It’s me.
  
  ---- Who are singing?            ---- It is the children.
  
  ---- The light is still on in the lab. It must be the third-year students doing the experiment.
  
  4、it与one的差别:这两个词都能够代表前方说过的名词,但it用于同名同物的场所;one则用于同名异物的场所。
  
  e.g. ---- Do you still have the bicycle?         ---- No, I have sold it.
  
  ---- Is this knife yours?         ---- No. It is Xiao Zhang’s. Mine is the one on the desk.
  
  5、it与that的差别:两词都可代替某一特命名词,但that指同一类,并非同一个。
  
  e.g. The climate of South China is mild(柔顺的); I like it very much.(it指the climate of South China)
  
  The climate of South China is much better than that of Japan.(that指the climate)
  
  (二)作无人称代词
  
  it作无人称代词时,除了句中找不到它所代表的词语外,另一个特点是它背面的内容都是显露天色、时间、距离、度量衡及环境等。
  
  It is fine (rainy, windy, etc.).
  
  It is noon.
  
  It is a half hour’s walk to the factory.
  
  It is eighteen square metres in area.
  
  What does it matter?
  
  (三)作夸大词,组成夸大布局
  
  用以赞助转变句子布局,使句子的某一成分受到夸大。“It is (was) + 所夸大的成分 + that (who) + 别的成分。”在这个句型中,it本身没有词义。详见“一、夸大句”。
  
  (四)指导词it作形式主语(宾语)
  
  为了使句子平均,常接纳形式主语(或宾语)it ,而把真确主语(或宾语)置于句子背面。平时指导词it与它所代替的句子成分中间要夹有某些词。
  
  e.g. It takes half an hour to go there on foot.(It与to go there on foot之间夹有takes half an hour四个词)
  
  We thought it strange that Mr Smith did not come last night. (it与that从句中间夹有 strange)
  
  但偶然it与所替换片面之间并不夹有别的词。
  
  e.g. You may depend on it that they will support you.(由于介词on以后一般不干脆接that指导的宾语从句。留意:it不是多余的,不能够看成错句)

甘肃省渭源县会川镇青年路3号            电话:0932-4481185              邮编:748201

Copyright@2008甘肃省渭源县第二中学现代教育技术中心    邮箱:zhjcs_918@163.com 

陇ICP备17004388号       甘公网安备62112302000003号